Yamaha · Custom (professional flagship)

Yamaha YEP-842 Custom (842S / 842TS)

Name: Yamaha YEP-842 Custom (842S / 842TS)
Brand: Yamaha

Provenance under review. Reported as Japan, but the country of manufacture is not yet independently cited — the maker's page does not state one.

Build: in-house — Yamaha designs and builds this instrument.

Yamaha's professional brass is made in Japan (Toyooka). Confirm with a citable source.

Specifications

Model	YEP-842 Custom
Line	Custom (professional flagship)
Tier	Professional
Price band	$$$$
Pitch	Bb
Valves	4 — 3 top + 1 side, compensating
Compensating	Yes
Bore	15–16.8 mm
Bell	300 mm · yellow brass
Valves material	piston
Finishes	silver plate, silver plate with gold-plated trim (842TS)
Options	main tuning slide trigger (842TS)
Variants	YEP-842S (no trigger), YEP-842TS (main-tuning-slide trigger system)

Specs verified July 6, 2026.